-archy

1.
a combining form meaning “rule,” “government,” forming abstract nouns usually corresponding to personal nouns ending in -arch:
monarchy; oligarchy.
Origin
Middle English -archie < Latin -archia < Greek, equivalent to arch(os) or -arch(ēs) -arch + -ia -y3
British Dictionary definitions for -archy

-archy

combining form
1.
government; rule: anarchy, monarchy
Derived Forms
-archic, combining_form:in_adjective
-archist, combining_form:in_noun:countable
Word Origin
from Greek -arkhia; see -arch
Word Origin and History for -archy

word-forming element meaning "rule," from Latin -archia, from Greek -arkhia "rule," from arkhos "leader, chief, ruler," from arkhe "beginning, origin, first place" (see archon).